RGB to HEX Converter
Convert RGB values to HEX color codes instantly. Supports rgba() with alpha transparency to produce 8-digit HEX codes.
How to Convert RGB to HEX
Enter the Red, Green, and Blue values (each from 0 to 255) into the input fields. The tool instantly generates the corresponding HEX code, ready to copy into CSS, Figma, or any design tool. If you provide an optional alpha value, the result becomes an 8-digit HEX code with embedded transparency.
RGB vs HEX: Which to Pick for Your Project
Use HEX in static CSS, design files, brand documents, and anywhere humans will read the value. Use RGB when working with JavaScript, color animations, dynamic theming, image processing, or when you need fine-grained control over individual channels. Most workflows mix both — you might design in HEX, then convert to RGB at runtime for animation.
How the Math Works
Convert each decimal (0–255) to a 2-character hexadecimal string, then concatenate. For example: 255 in hex is FF, 87 is 57, 51 is 33 → #FF5733. Pad single-digit results with a leading zero (5 becomes 05). The tool handles all edge cases automatically.
Working with rgba() Alpha Channel
When you specify an alpha value between 0 and 1, the tool converts it to a hex byte (0.5 → 80, 0.8 → CC) and appends it to the HEX code. The resulting 8-digit format (#RRGGBBAA) works in all modern browsers and Tailwind CSS. For older browser support, stick with the rgba() syntax.